The more physical memory your VPS has, the more programs you shall be able to run concurrently. Some apps require loads of RAM even when nothing else is running on the hosting server, even though they may not require high Processor speeds or lots of disk space. If your hosting server runs out of memory, it shall stop responding and the Internet sites and the offline apps you host on it will not work adequately, as their software components will not load since there will not be any free memory. In this light, we offer a RAM upgrade for our VPS packages, so if you detect that your server is close to the limit, you'll be able to take full advantage of this upgrade without upgrading the whole plan and paying for resources that you will not use. That way, you can ensure the proper functioning of your scripts and stop worrying that your website visitors will see errors or won't be able to open your Internet sites at all.